Macro-analysis on the driving forces of the land-use change in China
Land-use is one complex system, which is affected by many factors, including both socio-economic elements and natural resources and environment. This paper firstly established a framework for macro-analysis on the driving forces of land-use change in China, in which economic welfare, environmental welfare, the need for food security and the advancement of science and technology are the main forces contributing to the land-use changes. Then the paper analyzed the basic contradictions in the land-use change in recent years on the basis of current situation of land-use and economic development in China. In the third section, according to the analytical framework established firstly and the basic contradictions in the land-use change, and on the basis of the land-use data and other related socio economic documents in recent years, this paper analyzed and computed the indexes of the driving forces of the land-use change and represented their spatial distribution in China. By the distribution of these driving forces, the whole China can be seen as three distinct sub-areas: Tibet-southwest sub-area, central-northwest sub-area and east sub-area, each of which takes on different features in respect of the driving forces of land-use changes. As indicated in this paper, the economic welfare is the fundamental impetus to the land-use changes, and the environmental welfare and the need for food security are also important factors in China. The future land-use change is ultimately decided by the performance of these factors and their interactions.